Physics · Electrostatics
Two charges A (5.0 μC) and B (10 μC) are located at points (0 cm, 0 cm) and (-8 cm, -6 cm) respectively. The force exerted by charge B on charge A is (where î and ĵ are unit vectors along x-axis and y-axis respectively and [1 / 4πε0] = 9 × 109 Nm2/C2):
- 1(36 N)î + (27 N)ĵ✓
- 2-(36 N)î - (27 N)ĵ
- 3(27 N)î + (36 N)ĵ
- 4-(27 N)î - (36 N)ĵ
Correct answer
(36 N)î + (27 N)ĵ
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